Add missing .owner of struct snd_soc_card. This prevents the module from being
removed from underneath its users.
Reported-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>